مشخصات پژوهش

Anovel strategy was design and applied for the fabrication of an epoxy resin nanocomposite containing epoxidized novolac (ENR), epoxidized poly(vinyl chloride) (EPVC) and modified silica nanoparticles (M-SiO2 NPs). For this purpose, novolac was epoxylated through the functionalization with epichlorohydrin in super basic medium to produce ENR. The EPVC was synthesized through the allylation of PVC using allyl alcohol followed by oxidation of allyl groups with meta-chloroperoxybenzoic acid (m-CPBA). The amine-modified SiO2 NPs (7 wt%) in the presence of a small amount of ethylenediamine (EDA; 3 wt%) were applied as curing agents for curing a mixture of ENR (70 wt%) and EPVC (20 wt%) in order to afford a C-ENR-EPVC/SiO2 nanocomposite. The morphology and thermal stability of the fabricated nanocomposite were investigated using transition electron microscopy (TEM) and thermogravimetric analysis (TGA), respectively. As the thermal property studies results, the addition of EPVC as well as curing of mixture using amine-modified SiO2 NPs has synergistic effect on the thermal stability of theENR resin.